Surveillance cameras are used to remotely monitor activity within buildings. Surveillance cameras are used to provide additional survaillance in areas where it may be hard to position a manned patrol unit, or used in tandem with a patrol to provide extra coverage. If the camera detects an annomaly, an intruder, or a disturbance, an alert will be raised and units will be dispatched to investigate. Vstar security provide wide range of surveillance cameras including Standard Box Camera, Waterproof Camera, IR Camera, IR Dome Camera, High Speed Dome Camera, Middle Speed Dome Camera, IR Speed Dome Camera, which can meet varies surveillance requirements of home, school, office, factory, pubilic building, industrial fields...etc.